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The symbol (aq) is used after a chemical formula in an equation to indicate that the substance is in aqueous solution, meaning it is dissolved in water.
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What is a symbol used in a chemical equation for an aqueous solution?
'aq' , sometimes subscripted at the right of the element's symbol: eg. Na+aq
How can iron be used to get copper from copper sulfate solution?
Since iron (Fe) is more reactive than copper (Cu) it will be 'plated' with copper when the metal iron is stuck in copper sulfate solution. Fe(s) + Cu2+(aq) + [SO42-]aq ---> Fe2+(aq) + Cu(s) + [SO42-]aq
What is Ka for HCN(aq) H plus (aq) plus CN and ndash(aq)?
HCN(aq) ==> H^+(aq) + CN^-(aq)Ka = [H+][CN-]/[HCN] and the value can be looked up in a book or on line.
What is the net ionic equation of barium chloride and potassium carbonate?
Barium chloride and sodium sulfate Molecular equation: BaCl2(aq) + Na2SO4(aq)--> BaSO4(s) + 2NaCl(aq) ionic equation: Ba+2(aq) + 2Cl-(aq) + 2Na+(aq) + SO4-2(aq) --> BaSO4(s) + 2Na+(aq) + 2Cl-(aq) Net ionic equation is Ba+2(aq) + SO4-2(aq) --> BaSO4(s)
Which acid is known as king of chemicals?
Aqua regis (Latin: water of king) is the triviale name of the 3:1-mixture of concentrated hydrochloric acid (HCl) and nitric acid (HNO3), capable of dissolving (by oxidation) of gold, the King of metals.The first step reaction (oxidation) will only go further when followed by the 2nd step of complex forming to the tetrachloroauraat ion AuCl4-, because too much Au3+will stop the oxidation.Au(s) + 3 NO3-(aq) + 6 H+(aq) → Au3+(aq) + 3 NO2(g) + 3 H2O(l)Au3+(aq) + 4 Cl-(aq) → AuCl4-(aq)
Can h2o2 used for hydrolysis?
Yes, it can. The equation is H202(aq) + H2O(l) --> HO2-(aq) + H3O+(aq).
What is a symbol used in a chemical equation for an aqueous solution?
'aq' , sometimes subscripted at the right of the element's symbol: eg. Na+aq
If zinc and iron are used to make a cell what half-reactions will occur?
Zn(s) -> Zn2+(aq) + 2e- and Fe3+(aq) + e- -> Fe2+(aq)
Sodium di hydrogen phosphate dissociation?
NaH2PO4(aq) + H2OàH3PO4(aq) + NaOH(aq) H3PO4(aq)ßàH+(aq) + H2PO4_(aq) H2PO4-(aq)ßàH+(aq) + HPO42-(aq) HPO42-(aq)ßàH+(aq) + PO43-(aq)
If zinc and iron are used to make a cell what half-reactions will occur for zn2 plus aq plus 2e- zn s e0 equals -0.76 v and for fe3 plus aq plus e- fe2 plus aq e0 equals 0.77 v?
Zn(s) → Zn2+(aq) + 2e- and Fe3+(aq) + e- → Fe2+(aq)
If silver and copper are used to make a cell what half-reactions will occur for ag plus aq plus e- ag s e0 equals 0.80 v and for cu2 plus aq plus 2e- cu aq e0 equals 0.34 V?
Ag+(aq) + e- → Ag(s) and Cu(aq) → Cu2+(aq) + 2e-
Will sodium carbonate react with hydrochloric acid. 2HCI(aq) NA2CO3(aq)--- 2NaCI(aq) H2O(aq) CO2(aq)?
Will sodium carbonate react with hydrochloric acid. 2HCI(aq) NA2CO3(aq)--- 2NaCI(aq) H2O(aq) CO2(aq)?
How do you test for the presence of iodine?
Testing for Iodide, I-Sodium iodide, NaI, is the source of iodide anion for this experiment.Reaction with bleach involves three steps. The brown color shows the presence of I3- ions.Hypochlorite ion yields chlorine:OCl- (aq) + Cl- (aq) + H2OCl2 (aq) + 2 OH-Chlorine reacts with iodide anion:Cl2 (aq) + 2 I- (aq)I2 (aq) + 2 Cl- (aq)Triiodide ion is formed:I2 (aq) + I- (aq) I3- (aq)Starch reacts with iodine and iodide to form a characteristic blue/black complex. A corn starch packing peanut is shown here.Silver ion reacts with iodide to form silver iodide, AgI.Ag+ (aq) + I- (aq) AgI (s)Reaction of iodide with sulfuric acid produces hydrogen sulfide gas and brown triiodide solution in a series of reactions:I- (aq) + H2SO4 (aq) HI (aq) + HSO4- (aq)8 HI + H2SO4 (aq) H2S (g) + 4 I2 (aq) + 4 H2OI2 (aq) + I- (aq) I3- (aq)Again, starch is used to confirm the presence of iodine and iodide.
What is used in a chemical equation for a substance that is dissolved in water?
(aq)
Write molecular total ionic net ionic equations for NH3 plus HC2H3O2?
Molecular Eq HC2H3O2(aq) + NH3(aq) -> NH4+(aq) + C2H3O2-(aq) Ionic Eq H+(aq) + C2H3O2-(aq) + NH3(aq) -> NH4+(aq) + C2H3O2-(aq) Net Ionic Eq H+(aq) + NH3(aq) -> NH4+(aq)
What is the total ionic equation for magnesium nitrate and sulfuric acid?
Mg(NO3)2(aq) + H2SO4(aq) ==> MgSO4(aq) + 2HNO3(aq) Complete molecular equationTotal ionic equation:Mg^2+(aq) + 2NO3^-(aq) + 2H^+(aq) + SO4^2-(aq) => Mg^2+(aq) + SO4^2-(aq) + 2H^+(aq) + 2NO3^-(aq)RESULT - NO REACTION
What is the complete ionic equation for the reaction between Na2SO4 and CaCl2?
2Na+(aq) + SO42-(aq) + Ca2+(aq) + 2Cl-(aq) CaSO4(s) + 2Na+(aq) + 2Cl-(aq)
